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浏览/检索结果: 共20条，第1-10条 帮助

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Inverse multi-parameter analysis of oblique incidence laser interaction based on a multivariate thermal-mechanical response 期刊论文  OAI收割
THIN-WALLED STRUCTURES, 2025, 卷号: 210, 页码: 16
作者:  Du WQ(杜文琦);  Ma T(马特);  Lu LL(路玲玲);  Song HW(宋宏伟);  Liu YH(刘赟浩)
  |  收藏  |  浏览/下载：14/0  |  提交时间：2025/02/24
Probability Quantification of GSI and D in Hoek-Brown Criterion Using Bayesian Inversion and Ultrasonic Test in Rock Mass 期刊论文  OAI收割
ROCK MECHANICS AND ROCK ENGINEERING, 2023, 卷号: -, 期号: -, 页码: -
作者:  Liu, Jian;  Jiang, Quan;  Dias, Daniel;  Tao, Chen
  |  收藏  |  浏览/下载：22/0  |  提交时间：2023/08/02
Estimating the geological strength index and disturbance factor in the Hoek-Brown criterion using the acoustic wave velocity in the rock mass 期刊论文  OAI收割
ENGINEERING GEOLOGY, 2022, 卷号: 306
作者:  
  |  收藏  |  浏览/下载：14/0  |  提交时间：2023/08/02
Differences of Mechanical Parameters and Rockburst Tendency Indices between Coal and Non-Coal Rocks and Modified Rockburst Tendency Classification Criteria for Non-Coal Rocks 期刊论文  OAI收割
APPLIED SCIENCES-BASEL, 2021, 卷号: 11, 期号: 6, 页码: 16
作者:  Du, Kun;  Sun, Yu;  Yang, Songge;  Lv, Shizhan;  Wang, Shaofeng
  |  收藏  |  浏览/下载：33/0  |  提交时间：2021/06/18
Dynamic surface parameter analysis for frequency response of tip/tilt mirror 期刊论文  OAI收割
OPTIK, 2020, 卷号: 203
作者:  Xu, Guangzhou
  |  收藏  |  浏览/下载：26/0  |  提交时间：2020/07/20
Parameter optimization of passive dynamic walking biped with knees (EI CONFERENCE) 会议论文  OAI收割
2012 2nd International Conference on Materials Science and Information Technology, MSIT 2012, August 24, 2012 - August 26, 2012, Xi'an, Shaan, China
作者:  Zhang P.
收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25
A method to find the optimized parameter values of passive dynamic walking biped is presented. The effects of biped physical parameters on the stability property of passive gaits are studied by simulation experiments. The chosen parameters include the mass distribution  length of leg and slope angle. The stability property of passive walking limit cycles is used as criterion of optimization calculation  including the orbital stability described by eigen-values of linearized Poincare map and the global property described by size of attraction region. The simulation results show how the stability of limit cycle varies when physical parameters of the passive biped change. The work is useful to explore the inherent property of passive dynamic walking and can be used as an important instruction in the mechanical design of biped robots based on principle of passive dynamic walking. (2012) Trans Tech Publications  Switzerland.  
The Optimization of Mechanical and Electrical Integration Linear Output Transmission System with Sensor Function 会议论文  OAI收割
Guangzhou, China, November 16-18, 2012
作者:  Liu YW(刘玉旺);  Leng YQ(冷雨泉);  Luo HT(骆海涛)
  |  收藏  |  浏览/下载：19/0  |  提交时间：2012/12/28
Establishment of airplane flight model and simulation analysis of landing behavior (EI CONFERENCE) 会议论文  OAI收割
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
作者:  Li L.;  Li M.
收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25
This paper create a high fidelity plant model of an aircraft landing gear to inclusion into a full aircraft flight simulation for accurately analyzing the performance and influence of landing gear system. The use of domain specific modeling software enables detailed modeling of the physics and facilitates accurate computational simulation of the flight dynamic  aerodynamic  landing gear dynamic and mechanical loads that occur when the landing gear are deployed and retracted during landing and take-off operations. The parameter design space is easily searched by considering a number of different landing scenarios including touching down on one wheel first  to optimize the design. The simulation results show that the aircraft landing gear system mathematical model established appropriately reflects the change of force and moment in the process of taking off and landing  and it is actual in the physical process. 2011 IEEE.  
Study of the neural network constitutive models for turfy soil with different decomposition degree (EI CONFERENCE) 会议论文  OAI收割
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
作者:  Nie L.
收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25
The turfy soil is of a special humus soil. The decomposition degree is the main factor on the physical and mechanical properties of turfy soil. To build the turfy soil constitutive model  there are a few shortages such as the calculation cumbersome and low accuracy for parameter value with the method of traditional models. Furthermore  those methods did not reflect the influence of strength that effected by decomposition degree of the turfy soil. In this paper  the relationship of stress-strain with different decomposition degrees of turfy soil was carried out through indoor tests. Based on above experimental results  an improved method  which divided into different zones according to different decomposition degrees of turfy soil and calculated combining with neural network constitutive model is put forward. The result shows that  the neural network of turfy soil has good fitting precision and good generalization ability. It can fully describe the influence of the turfy soil. 2011 IEEE.  
Optimum design of the carbon fiber thin-walled baffle for the space-based camera (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Yan Y.; Gu S.; An Y.; Jin G.
收藏  |  浏览/下载：14/0  |  提交时间：2013/03/25
The thin-walled baffle design of the space-based camera is an important job in the lightweight space camera research task for its stringent quality requirement and harsh mechanical environment especially for the thin-walled baffle of the carbon fiber design. In the paper  an especially thin-walled baffle of the carbon fiber design process was described and it is sound significant during the other thin-walled baffle design of the space camera. The designer obtained the design margin of the thin-walled baffle that structural stiffness and strength can tolerated belong to its development requirements through the appropriate use of the finite element analysis of the walled parameters influence sensitivity to its structural stiffness and strength. And the designer can determine the better optimization criterion of thin-walled baffle during the geometric parameter optimization process in such guiding principle. It sounds significant during the optimum design of the thin-walled baffle of the space camera. For structural stiffness and strength of the carbon fibers structure which can been designed  the effect of the optimization will be more remarkable though the optional design of the parameters chose. Combination of manufacture process and design requirements the paper completed the thin-walled baffle structure scheme selection and optimized the specific carbon fiber fabrication technology though the FEM optimization  and the processing cost and process cycle are retrenchment/saved effectively in the method. Meanwhile  the weight of the thin-walled baffle reduced significantly in meet the design requirements under the premise of the structure. The engineering prediction had been adopted  and the related result shows that the thin-walled baffle satisfied the space-based camera engineering practical needs very well  its quality reduced about 20%  the final assessment index of the thin-walled baffle were superior to the overall design requirements significantly. The design method is reasonable and efficient to the other thin-walled baffle that mass and work environment requirement is requirement harsh. 2011 SPIE.